The startup behind the world’s first cannabis breathalyzer just raised a fresh $30 million and offered a glimpse at how the device works

“Shawn Ellis, a managing director at NFP Ventures, sees Hound’s device as a potential solution to poor hair- and urine-based drug testing methods currently used across industries like construction and trucking. Those tests can’t distinguish between someone who just smoked and someone who used several days before.”

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